/*
 * Copyright 2018 Azavea
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package geotrellis.spark.pipeline.json

import geotrellis.spark.pipeline.PipelineConstructor

trait PipelineExpr {
  def ~(other: PipelineExpr): PipelineConstructor = this :: other :: Nil

  def ~(other: Option[PipelineExpr]): PipelineConstructor =
    other.fold(this :: Nil)(o => this :: o :: Nil)

  val `type`: PipelineExprType
}
